The Leica AP21 is a high-precision Absolute Positioner designed to extend the capabilities of Leica Absolute Tracker systems by providing reliable positional and orientation referencing for advanced sensors. When paired with a laser tracker like the AT960, the AP21 enables metrology-grade tracking of scanners such as the Absolute Scanner AS1, allowing accurate 3D scanning over large volumes up to 30 metres without losing orientation or positional data. Its integrated reflector and LED constellation allow the tracker’s camera to continuously calculate precise orientation information, ensuring seamless measurement performance across complex surfaces while maintaining robust accuracy.

This positioning unit plays a crucial role in modular metrology setups, making it possible to track handheld scanners and other sensors without extensive realignment or downtime. Its design supports quick mounting and interchangeability with other measurement platforms, helping reduce setup time and streamline workflows in industrial inspection, reverse engineering, and quality control tasks.